Home>Bearing knowledge>The grease used for rolling bearings is still good with oil?

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Is the grease used in the rolling bearing still good with oil?

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Rolling bearings have both rollover conflicts and sliding conflicts. The sliding conflict is caused by the error of the rolling bearing on the external curve and the deformation of the bearing under load. For example, between the roll and the ring; because the ball and the ring are not positive rigid bodies; their touch The area always undergoes elastic deformation; in theory, it is a point touch or a line touch; in fact, the load working condition always becomes a face touch; thus touch points with different diameters have different line speeds and then a sliding conflict occurs. The same is because of various reasons, there will also be a sliding conflict between the roll body and the holder and the holder and the inner and outer rings. The sliding conflict increases with the addition of speed and load; in order to reduce conflict, wear, drop temperature, Noise; prevent the rust of the bearing components; correctly select the smoothing agent and choose a reasonable smooth method; suitable control of the amount of smoothing agent is an important issue to improve the life of the bearing.
1. The basis of oil or grease for rolling bearings:
The advantages of rolling bearings using smooth oil smooth are:
1) Under certain operating specifications; the smoothing of the starting torque and collision loss of smooth oil is smoother than smooth grease.
2) Because the smooth oil takes away the heat in the circulation to cool the effect; it can make the bearing reach a relatively high transition speed.
3) It can ensure that the higher operating temperature is reached.
4) When changing the fat; it is necessary to disassemble the relevant connecting parts; when the oil is smooth; there is no such trouble.
5) The bearing in the reduction gearbox is very suitable when smooth oil is smooth; because the oil together with the splash method reaches the intention of smooth gears and bearings together.
6) In the bearing, the smooth grease is gradually contaminated by the product wear product, the abrasive, the product which is saturated from the outside through the sealing device and the self-aging product; if not exchanged in time, the bearing is accelerated to wear; and when the liquid smoothing agent is used; Filter to make sure it works.
The smooth bearing strength of the rolling bearing:
1) Single bearing point; always need to add oil by hand; if you use grease, it will save energy and prevent the formation of trouble due to lack of oil.
2) The grease itself has a sealing effect; this allows the use of a tissue with a low degree of sealing to achieve a simplified depiction.
3) Experience has proved that in the range of certain speed (n<20000r/min or dn<20000mm.r/min), the lithium base grease has a lower temperature rise and a longer bearing life than the drop method.
2, rolling bearing smooth theoretical basis. Khan 龆岢 蠡硎 蠡硎 蠡硎 蠡硎 粲诘 粲诘 粲诘 粲诘 粲诘 粲诘 粲诘 粲诘.
3, rolling bearing failure type and smooth contact: most of the failure is due to the installation of wool. 芊獠涣 grade 鸹 鸹 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Gluing, corrosion and overheating.
4, the basic characteristics of smooth grease and the general specification for the selection of smooth grease:
When selecting smooth grease; it is necessary to select smooth greases that are compatible with the application conditions (temperature, speed, load, environment, etc.); these are related to the fundamental properties of smooth grease; and the fundamental properties of smooth grease depend on thickeners and foundations. Variety of oil.

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